Control means for sound-reproducing machines.



0. W. EBEHNG. CONTROL MEANS ron soumo nsrnonucme MACHINES.

P APPLICATION FILED FEB; 7. I916- IRENEWED DEC. 18. I917- P 1 1 7Patented Feb. 5 ,1918.

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I rrniu Tarn ra r r ornic CHARLES W. EBELING, NEW YORK, N. Y.

CONTROL MEANS FOR SOUND-REPRODUCING MACHINES.

aaaaiaa Specification of Letters Patent.

Patented Feb. 5, 1913.

. Application filed. February 7, 1916, Serial No. 76,631. RenewedDecember 18, 1917. Serial No. 207,798.

To all whom it may concern.

Be it known that I, CHARLES W. EBELING, a citizen of the United States,residing at New York, in the county of New York and State of New York,have invented certain new and useful Improvements in Control Means forSound-Reproducing Machines, of which the following is a specification,reference being had therein to the accompanying drawing.

In combining sound reproducing machines with motion picture mechanisms,there has been the inherent fault that the sound reproducin machinecould not be started from an inert position to a full speed, and neithercould such mechanism be brought to a stark standstill, to be startedfrom such position again, and so on.

It is therefore the object of the present invention to produce amechanism, that will start the sound reproducing mechanism from starkstandstill to full or maximum speed, and without throwing any straineither upon the sound reproducing mechanism or the motion pictureprojecting mechanism.

To attain this object, I provide a continuously rotating momentummember, preferably a heavy disk, made in the form of a fly wheel, incombination with a record carry- 1'ng member, which in turn is connectedto and disconnected from the momentum member, so that it will be rotatedwith the momentum member from a standstill without affecting the speedof such member, it having been discovered that the sound record carriedby the record carrying member can be halted in the middle of a word, andagain started to continue and finish such word.

" llhe mechanism that forms the connecting ratchet will have one or moreof its teeth enfully understood and its numerous advantages fullyappreciated, attention is invited to the accompanying drawings, in whichFigural is a front elevation of the sound reproducing means.

Fig. 2 is a top plan view thereof, the momentum member being removed.

Fig. 3 is a vertical cross section through the momentum device and the,adjacent parts including the tablet support. i

Fig. 4 is an enlarged detail sectional view through the momentum membershowing the connecting mechanism.

Figs. 5, 6, 7 and 8 are detail views of the pawl and its carrier.

Fig. 9 is a top plan View of the center of the momentum member.

Fig. 10 is a bottom plan view of'the annulus carried upon the undersideof the record carrying member.

Referring to the drawings, the numeral 21 designates a shaft which ispreferably driven from the motion picture projector machine,

not shown, to operate in turn through the ear 30 of the shaft 23. As thesleeve 28 is ormed integral with the momentum member 31, this member isrotated from the motion picture projecting machine, and it is desirablethat it be rotated all the time.

A circular chamber 32 is provided in the upper face of the member 31,and the upper end of the shaft 27 projects therein to receive thefixed'lower annular ratchet 33, while fitted in the mouth of the chamberis the upper annular ratchet 34, which through the threads 35 and thelock screws 36 is fast to and rotates with the member 31.

Projecting through the shaft 27 and mounted for both longitudinal androtary movements is a rod 37, the ,upper end of which is grooved at 38to receive the locking pin 39, so that the block 40, may be securedthereto for rotary movement, but must move longitudinally with the rod.Carried by this block and extending in o posite directions are the twopawls 41, eac one of which is provided with the two oppositely disposedseries of teeth; engaging projections or steps 42-and 42', the steps 42being disposed to engage the teeth of the fixed ratchet 33, while thesteps 42 are to engage the teeth of the other ratchet 34, only oneratchtet being operated at a time. a

The upper end of the rod 37 below the pawl carrying block is projectedthrough the tubular boss 43 of the open frame 44, which in turn housesthe block and also the major portion of the pawls, said frame beingconnected by screws or otherwise to the annulus 45 secured to theunderside of the record disk or tablet carrying platform or member 46.Thus the platform or member 46 is always in position to be connected toor' disconnectedfrom the member 31. The elevating of the rod 37 movesthe pawls into engagement with ratchet 34, and consequently connects theplatform 46 with the member 31 through the frame 44, the block 40, thepawls 41 and the ratchet 34. The lowering of the rod 37 causes the pawlsto disengage the ratchet 34 and to engage the fixed or stationaryratchet 33, thus halting the. block 40, the frame 44 and the platform46. i

As each pawl is provided with the peculiarly formed ratchet teethengaging ends, each step of which constitutes a tooth engager, itrequiresa very slight movement of the momentum device to cause theengagement with its ratchet 34 or the ratchet 33, to

connect and disconnect the platform 46,

without any perceptible lost motion. This special pawl was designedafter considerable testing, and was found to accomplish the resultdesired.

Several' mechanisms for imparting the desired longitudinal movement tothe rod 37, to control, the operation of the block 40 and the pawls fromthe motion picture projecting machine, and thus produce the desiredsynchronism between the two mechanisms 'when talking or singing movingpictures are being produced, or where it is desired to introduce verbalexplanations of the pictures being projected, as for instance insertsused in the films, may be employed.

One form is here illustrated, and comprises a rocking arm or lever 47,mounted below the base, and operably connected as at 48 to the lower endof the rod 37. The solenoid 49 has. its core 50 operably connected tothe arm 51, which in turn carries the two pivoted-pawls 52 and 53, whosehooked terminals co'o'perate with the pins 54 and 55, of the armor lever47, so that the arm orlever may be rocked and held in such selectedposition,'and-thus impart the desired movement to the rod 37 and thepawls, so that the platform 46 will be heldinert or connected forrotation with the member 31.

The solenoid 49 is controlled from the film in any desired manner, thedetail. arrangement and construction of which it is not deemed necessaryto show in the present application.

, As a telephone system is employed to convey the sound from the recordtablet to various points in the auditorium a switch 65 is provided toopen and close said circuit at the proper time, the circuit being openwhen the tablet is inert and closed when the tablet is revolved.

The upper surface of the latform 46 is covered with the usual sheet 7 ofsoft material to receive the sound record or tablet 80. The centeringpin 81 is carried by the platform whichhas the center disk. 82 heldthereto by the pin 81 and also the other pin 83, which cooperates inholding the tablet 80 upon the platform 46. This arrangement of pinsalso assist in placing the record tablet for proper positioning instarting the same, in connection with the phonic groove of the recordand the stylus of the transmitter.

What I claim as new is 1. In an apparatus of the character described, acontinuously rotating driven member having a recess in one face thereof,and also having a clutch member, a stationary locking clutch membermounted in said recess, a driven member, and slidable means connected tothe driven member and adapted to be engaged with either one of theclutch members, whereby the driven member is rotated with the drivingmember or held stationary.

2. In an apparatus of this character, the combination of a support, acontinuously rotating member mounted thereon, a slidable member disposedaxially of the rotating member, an engaging member carried thereby, asound record support operably when one means is engaged by the engagingmember the record support is rotated by the rotating member and when theother means is engaged the record support is held stationary, and meansfor actuating the slidable member to select the position of the.engaging member.

3. In an apparatus of this character, th combination of a support, acontinuously rotating disk mounted thereon, a rod mounted axially of andfor longitudinal sliding movement through the disk, a pawl carried bythe rod, a sound record support operably connected to the pawl, twoindependent means one, rotatable with and the other stationaryrelatively to the disk, whereby when one means is engaged by theengaging member the record support is rotated by the rotating member andwhen the other means is engaged the record support is held station- 5.In an apparatus of this character, the

combination of a support, a continuously rotating disk'mounted thereon,a rod mounted axially of and for longitudinal sliding movementrelatively to the disk, a member connected to the rod and extendingdiametrically of the disk, said member being provided upon each end withtwo series of oppositely acting teeth, two rings, one of which isstationary and the other of which is fast to the disk, the opposed facesof said rings being toothed for cooperation with the teeth of the rodcarried member, means for sliding the rod to cause either toothed ringto be enga ed by the ,od carried member, and a sou'n record tabt supportconnected to the rod carried me a ter is connected to or rotating disk.

6. In an apparatus of this character, the combination of a support, acontinuously rotating disk having a concentric chamber, said disk beingmounted upon the support, two rings, one made fast tothe support and theother carried by the disk, both of said isconnected from the rings beingwithin the chamber and the op posed faces of such rings being clutchfaces, a sound record tablet support, a sliding rod mounted in the firstsupport and connected to the record tablet support, a clutch membercarried by the rod for engagement with one of the rings at a time, andmeans for sliding the rod to cause the clutch member to engageeitherring at a time and thereby connect or disconnect the tabletsupport relatively to the rotating disk.

7. In an apparatus of this character, the

' combination of a support, a continuously rotating disk carriedthereby, two rings one made fast to the support and the other car- 'riedby the disk, the opposed faces of such rings being clutch faces, a soundrecord tablet support, a frame carried by the tablet support, a clutchmember mounted in said frame forsliding movement, a sliding rod mountedin the first support and connected to said clutch member, and means forsliding the rod to actuate said clutch member relatively to the rings.

8. In an apparatus of this character, the combination of a support, acontinuously r, whereby the latp the tablet support, means carried byrotating disk mounted thereon and having a concentric chamber openthrough the top,

two rings, one made fast to the support and the other carried by thedisk, both of said rings being within the chamber and the opposed facesof such rings being provided with teeth, a sound record tablet support,a sliding rod mounted .in the first support and operably connected tothe tablet sup-' port, a pawl connected to said rod for engaging. theteeth of the respective rings, and means for sliding the rod to actuatethe pawl.

9. In an apparatus of this character, the combination of asupport, acontinuously rotating disk mounted thereon, and having a concentricchamber open through the top, two rings, one madefast to the support andthe other carried bythe disk, both of said rings being within theconcentric chamber and the opposed faces of such rings being providedwithteeth, a sound record tablet support, a frame carried by the tabletsupport and projecting into said chamber, a

pawl mounted in said frame for sliding movement, a sliding rod mountedin the first support and connected to said pawl, and means for slidingthe rod to move the pawl into engagementwith either one of the rings ata time.

10. In an apparatus of this character, the combination 0 a support, acontinuously rotating disk mounted upon the support and having a chambertherein, two rings, one connected to the disk within the chamber and theother connected to the support and also in the chamber, the later beingstationary, the opposed faces of the rings being provided 'with teeth, asound record tablet support, a rod slidably mounted in the first supportand operably connected fio t e rodfor engaging the teeth of one of therings at a time, and means for actuating the rod.

11. In an apparatus of this character, the combination of a support, acontinuously rotating disk having a concentric chamber therein, tworings, one connected .to the disk within the chamber and the otherconnected to the support within the chamber, the latter beingstationary, the opposed faces of the rings being provided with teeth, asound record tablet support, a frame carried by the tablet support, apawl mounted in the frame and having its terminals disposed to engagethe teeth of the rings, a rod slidably mounted in the first support andconnected to the pawhand means for actuating the rod to cause the pawlto engage one of the rings at a time.

12. A sound reproducing mechanism, including a support, a tubular shaftcarried thereby, a disk having a tubular portion and a concentric recesssurrounding the tubular shaft and disposed vwithin the recess forsliding movement, whereby either one of the transmission means isengaged at a time.

13. A sound reproducingmechanism, including a support, a tubular shaftcarried thereby, a disk having a tubular portion and a concentric recesssurrounding the tubular shaft for rotation, driving means connectedthereto, a pair of oppositely disposed transmission means mounted withinthe recess of the disk, one being connected to the disk and the otherbeing fast to the tubular shaft, selectively operated means mounted inthe shaft and disposed within the recess for sliding movement, :wherebyeither on of the transmission means is engaged at a time, a sound recordplatform disposed above the disk for independent rotation, and meansconnected thereto and to the selective means, whereby the platform isheld inert or rotated with the disk.

end of said last shaft 14. A sound reproducing machine, in cluding asupport, a fixed tubular shaft carried thereby, a momentum disk having acentral recess and a tubular portion, said tubular portion being mountedfor rotation upon the shaft, driving means connected to the tubularportion, two oppositely disposed ratchet wheels mounted within therecess, one of said wheels being fast to the fixed shaft and the otherbeing fast to the disk, a tablet support mounted above the disk, aconnecting member attached to the tablet support and projected withinthe recess of the disk, a longitudinally movable and rotati've shaftmounted in the tubular shaft and projecting above and below the same,and means mounted upon the upper and operably connected to theattachinmember of the tablet support for establis ing connection with either oneof the ratchet wheels, whereby the tablet support is held inert whenengaging the fixed ratchet wheelor is rotated with the momentum diskwhen other ratchet wheel.

In testimon whereof I afiix my signature.

HARLES W. EBELING.

engaging the

